Horwood House, Service Wing, Stable Block, Gate Piers and Walls to Forecourt

Horwood House is a mansion, now used as a training centre, which dates back to 1911 as indicated on the rainwater heads. It was designed by architects Detmar Blow and Billerey for Frederick Denny. The building is constructed from thin pale brick, which was hand-made and imported from Holland, and features some stone dressings. It has a tiled roof and tall brick chimneys with entablature tops, showcasing a Jacobethan style. The house is two storeys tall with an attic and consists of five bays.

The exterior includes a brick plinth and moulded brick entablatures at both the first and second floor levels, with the outer and central bays gabled. The windows are stone mullion and transom types, with three-light windows in the outer bays, four-light windows in bays two and four, and a two-light window above the porch in the centre. Bays two and four also feature three-light windows in hipped dormers. The first floor has elongated oval windows between the outer bays, with the left one being blind.

A projecting two-storey porch at the centre is supported by stone Doric pilasters and features a triglyph entablature on the ground floor, while the first floor has Corinthian pilasters, an entablature, and a pediment. The entryway has a round arch adorned with ornamental block motifs. On the garden side, the outer bays have two-storey semi-octagonal bay windows. The central stone doorcase is flanked by Doric columns and features triglyph blocks and an open pediment with carved swags.

Inside, the mansion includes panelling and fireplaces that match the overall style. To the left is a lower two-storey service wing, which has chimneys with square shafts set diagonally. Attached to the service wing are stable ranges that form a courtyard in front; these are single-storey structures with thatched roofs and two-light stone mullion windows. The north-west range, which has a tiled roof, now contains two dwellings. The remainder of the forecourt is enclosed by a wall made of similar brick with tiled coping. There are also a pair of square plan brick gate piers flanking the entry on the north-east side, which feature round arched niches, stone benches, and stone caps with segmental pediments.